Nutritional assessment methods for zinc supplementation in prepubertal non-zinc-deficient children.

Background: Zinc is an essential nutrient that is required for numerous metabolic functions, and zinc deficiency results in growth retardation, cell-mediated immune dysfunction, and cognitive impairment.

Objective: This study evaluated nutritional assessment methods for zinc supplementation in prepubertal non-zinc-deficient children.

Design: We performed a randomised, controlled, triple-blind study.

Bioelectrical impedance vector analysis for evaluating zinc supplementation in prepubertal and healthy children.

Background: The prevalence of abnormal nutritional status has increased in children and adolescents. Nutritional assessment is important for monitoring the health and nutritional status. Bioelectrical impedance vector analysis (BIVA) combines changes in tissue hydration and structure and body composition that can be assessed.

Sensitivity of zinc kinetics and nutritional assessment of children submitted to venous zinc tolerance test.

Objective: The purposes of this study were to investigate the kinetics of zinc in schoolchildren between the ages of 6 and 9 years, of both sexes, and to verify its sensitivity in detecting alterations in body zinc status.

Methods: Nutritional assessment was performed by body mass index. Food intake, venous zinc tolerance test, and zinc kinetics were carried out before and after 3-month oral zinc supplementation.